JP4077153B2

JP4077153B2 - Bendable roll for web-like materials

Info

Publication number: JP4077153B2
Application number: JP2000509960A
Authority: JP
Inventors: ユハイソメトサ、; トゥオモクルケラ、; ヨルマスネルマン、; ペッカキビオヤ、; マウリルカヤルビ、; エサビルムセナホ、
Original assignee: Metso Paper Oy
Current assignee: Valmet Technologies Oy
Priority date: 1997-08-19
Filing date: 1998-08-11
Publication date: 2008-04-16
Anticipated expiration: 2018-08-11
Also published as: FI103071B; WO1999009329A1; FI980071L; DE69838504T2; CA2301276C; ATE374889T1; EP1003980B1; FI980071A0; CA2301276A1; FI103071B1; EP1003980A1; US6524227B1; AU8733698A; JP2001515192A; DE69838504D1

Abstract

A roll that can be bent for a web-like material, which roll comprises a continuous tubular roll mantle (11) of composite material as well as axle journals (12) connected to each end of the roll mantle (11). The axle journals (12) are attached by means of at least one mechanism (30), by whose means the axle journals (12) and thereby the roll mantle (11) are bent into an arc form, and a regulation device (40) by whose means the angular position of the roll arc can be regulated.

Description

【０００１】
本発明は、特許請求の範囲第１項の前段に記載の、ウェブ状材料用に曲成可能なロールに関するものである。
【０００２】
最も一般的には、曲成可能なロールは、連続した軸と、軸に取り付けられた複数の部品から成るロールマントルとを含むように形成されている。かかるロールは、ロールマントルの最も外側の軸着点を半径方向に移動させることによって、所望の形状に曲成可能であるが、その場合、マントルは円弧または破線を形成する。マントルの部品は、原則として、それぞれ別個に軸に取り付けられていて、その場合、構造は多数の軸受(以下では「軸受け」とも呼ぶ)を含む。従来の方式にはしばしば問題があり、それらは、とりわけ、ロールにおける軸受けの問題と、および紙ウェブ内の軸受けにより生じる熱のピークとを含む。複数の部品から成るロールマントルは更に深刻な問題を生じる。なぜなら、それら部品間の空隙が紙ウェブに傷痕を残し、ロールの円弧形状が最適でなくなり、ロールの形状線が破線状になるからである。更に、金属性のロールマントルにより、腐食の問題が生じる。
【０００３】
本願出願人によるフィンランド実用新案登録第2788号に記載のロールは、非回転ロール軸と、軸受けにより軸に回転可能に取り付けられたロールマントルとを含む。ロールマントルは連続した管状マントルであり、ロール軸は、互いに連結した３つの部品から成る。内部が中空であるロール軸の、２つの端部部品の内側端部は、軸の中空管状中央部品の内部へ一定の距離で延びている。ロールの端部区域内には支持用スリーブが取り付けられていて、そのスリーブにロールマントル自体が取り付けられている。ロールマントルは、軸の端部部品のそれぞれに、前記支持用スリーブを介して、互いに軸方向に間隔をおいた２つの軸受けにより、取り付けられている。軸の端部部品は、その軸の中央部品に、連接部材によって連結され、軸の端部部品は、軸の中央部品に対して傾斜可能である。この傾斜は、軸の端部部品が軸の中央部品に対して半径方向に動くように実行される。ロール曲成機はカム部材を含み、それは２つのアーム付きのレバーを形成し、管状端部部品の壁に回転可能に取り付けられている。カム部材の内側端部は前記管状端部部品の壁を通ってその端部部品の外側に延び、中央部品の内面に支持されている。管状端部部品の内部には補助の移動可能調整ロッドが取り付けられていて、その内側端部はカム部材に対して支持されている。カム部材が軸方向に移動すると、カム部材は回転することができ、軸の中央部品の内面に対して強い力で支持され、それと同時に軸の端部部品と中央部品との間の距離がカム部材の側で大きくなり、その場合、軸は曲がる。ロールマントルは鋼または複合材で作ってもよい。
【０００４】
前記フィンランド実用新案登録第2788号に記載の方式はそれ自体は有効であるが、比較的複雑で費用がかかる。
【０００５】
本願出願人によるフィンランド特許出願第970379号に記載のロールは、２つの端部部品と１つの中央部品とから成る。この方式では、軸を中心に回転するマントル付きの別個の軸をロールは含まないが、その中央部品もロールの軸として作用し、中央部品はその支持用部材に、端部軸受けによって取り付けられている。軸として作用する中央部品の延長部は、中央部品の直径より実質的に小さい直径を有し、その寸法は通常の非回転軸の直径と同等である。ロールの端部部品は管状部品であり、それらは直接中央部品の延長部に取り付けられていて、端部部品の内側端部では、連接手段が管状端部部品の内部に取り付けられている。管状端部部品は軸方向に、それぞれの外側端部の区域で軸受けによって支持されていて、回転する部品からは独立した支持部品に取り付けられている。支持部品はスリーブ状部品から成り、その内径は中央部品の延長部の直径より大きく、軸受けの位置を半径方向に調整可能である。管状端部部品の軸受けの位置を調整すると、ロールの曲成形状の程度および曲成形状の方向の両方が調整可能になる。このようなロールマントルの材料として複合材を使用してもよい。
【０００６】
前記フィンランド特許出願第970379号では、ロールマントルを通って延びる軸が使用されていて、ロールの構造全体が比較的複雑であり、ロールの費用が高くなる。
【０００７】
フィンランド特許出願第951288号には、連続したロールマントルまたは複数の部品から成るロールマントルを設けたロールが記載されている。ロールマントルの材料は、強化プラスチックまたはそれと同様の複合構造である。ロールにはそのロールマントル全体にわたって延びている連続した支持軸が設けられていて、その軸は回転せず、定位置に支持されている。支持軸の中央部には肉厚部があり、そこにロールの中央軸受けが取り付けられている。前記軸受けは環状取り付け部品によって支持され、これによって軸受けの外側軌道はロールマントルに支持されている。ロールの両端部にはスリーブが取り付けられていて、それらスリーブはロールマントルの内部へ一定の距離で、更にロールマントルの外へ一定の距離で延びている。ロールマントルの両端部は前記スリーブに軸着されている。スリーブの、ロールマントルの外側の部分には、調整用ねじが取り付けられていて、これによって、支持軸で形成された中心線からスリーブを偏向可能とする。スリーブを支持軸で形成された中心線から偏向させると同時に、ロールにおける最も外側の軸受けの中心は前記中心線から外れ、その場合、ロールマントルは曲げられるが、支持用軸は常にまっすぐの状態に保たれる。
【０００８】
前記フィンランド特許出願第951288号では、ロールマントル全体を通って延びている連続した支持軸が用いられていて、その中央部には肉厚部がある。したがって、このロールは比較的高価となり、重くなる。更に、ロールはロールの中央部における支持軸の肉厚部のところにも軸受けを有する。ロールの中央部に取り付けられたこれらの軸受けは、ロールマントルにおける前記熱の問題を生じ、軸受けの外側軌道とロールマントルの内面との間に環状取り付け部品を設置することによって、前記熱の問題を軽減する試みがなされてきた。
【０００９】
欧州特許出願第363,887号には、複合材製のロールが記載されている。前記欧州特許出願の技術は、ロールマントルのさまざまな表面層の構造および材料に関するものである。この技術により製造され、非常な高速度を指向した回転式ロールを同出願図４は示していて、ロールには複合材製のロールマントルと、ロールマントルの両端部における軸ジャーナルとが設けられている。軸ジャーナルはロールマントルに端部フランジによって接続されている。前記欧州特許出願は明らかにロールマントルの材料構成に関するものであり、充分な表面硬度と、軽量と、高い寸法精度とを有するロールを製造することを目的としている。この特許出願はロールの曲成には言及していない。
【００１０】
複合ロールは、その多くの有利な特性のため、高い関心を集めている。複合材製のロールマントルも用いることができる上述のロール方式は、しかし、扱いにくく、費用がかかる。
【００１１】
弾性係数および密度係数などの複合ロールの有利な材料特性のため、複合ロールは寸法決めされ、合理的なトルクで曲げられて所望の曲成形状にすることができ、これは、危険速度より低い、すなわち最低の共振振動数以下の、あるいは共振振動数の間の速度で作動する。鋼鉄製ロールの歪を相当に増大させることなく必要な曲成形状に曲げるとすると、ロールの直径を非常に小さくする必要がある。このような場合、ロールの１つまたはいくつかの臨界速度を、止むを得ずに越える必要がある。
【００１２】
鋼鉄製ロールの場合、その曲成に必要な曲げトルクも、複合ロールの場合に比べて相当に大きく、その場合、鋼鉄製ロールでの軸受けの力も、複合ロールの場合に比べて相当に大きい。
【００１３】
本発明による方式は、曲成可能な従来技術のロールをしのぐ実質的な改善手段を提供する。
【００１４】
本発明によるロールの主たる構成要件は、特許請求の範囲第１項の特徴段に記載する。
【００１５】
本発明によるロールには、複合材製の連続した管状ロールマントルがある。ロールマントルの両端部には軸ジャーナルがあり、これによってロールは抄紙機のフレームへ取り付けられている。したがって、ロールはロールを貫通する軸を一切有さない。従来の張り出しロールと比べると、本発明によるロールの構造は明らかに単純であり、その保守の必要性はほとんどない。この簡易な構造によってロールの製造は容易であり低費用ですむ。更に、この簡易な構造によってロールの修理は容易である。
【００１６】
次に添付図面を参照して本発明を説明するが、本発明は前記図面の内容のみに限定されるものではない。
【００１７】
図１は、トルクM₁、M₂をロールマントル11の両端部へ掛けることによってロールマントル11を曲げる原理図である。トルクM₁の大きさはトルクM₂の大きさとは相違させてよく、その関係上、ロールマントル11上を進むウェブの走行は、ロールの軸方向に制御可能である。
【００１８】
図２は本発明によるロールの実施例を示す。同図では、ロールの一方の端部区域を示す。ロールは複合材製の連続した管状ロールマントル11から成り、そのマントルは軸ジャーナル12上で回転するように取り付けられている。ロールマントルの端部区域には第１の支持用スリーブ13が取り付けられていて、それらスリーブにはロールマントル11自体が更に取り付けられている。ロールマントル11は、前記第１の支持用スリーブ13を介して、軸受け14、15によって、軸ジャーナル12へ取り付けられている。軸受け14、15は互いに一定の間隔でロールの軸Ｘ−Ｘ方向に取り付けられていて、したがって、それら軸受けは、１対の軸受けを形成している。
【００１９】
図２では、軸ジャーナル12は３つの部品12a、12b、12cから成り、それらはすべて異なる直径を有する。ロールマントル11の端部区域の内部へ延びている内側部品12aは最大の直径D₁を有し、次の中央部品12bはロールマントル11の端部から外側へ向けられていて、わずかに小さい直径D₂を有し、中央部品12bの後に続く外側部品12cは、更に中央部品12bより幾分小さい直径D₃を有する。軸ジャーナル12は、むろん、物理的に一体成形可能であり、その場合、前記部品12a、12b、12cは、例えば旋盤で切削して作られる。軸ジャーナル12の中央部品12bの中央部には突起部16があり、それは軸ジャーナルの外周の周りに延びていて、連接部材を形成する。軸ジャーナルの外側部品12cへ、および部分的に中央部品12bへ、第２の支持用スリーブ17が取り付けられている。この第２の支持用スリーブ17は軸ジャーナル12の中央部品12bに設けられた突起部16を越えて延びていて、第２の支持用スリーブ17の内径は、突起部16の外径に実質的に等しい。第２の支持用スリーブ17は、２つの固定用部材18、19によって、抄紙機のフレームＲへ固定されている。第１の固定用部材18は突起部16のところに配され、第２の固定用部材19は軸ジャーナル12および第２の支持用スリーブ17の外側部品12cの外側端部から一定の間隔をおいて配されている。
【００２０】
図２では、ロールを曲げて曲成形状にすることは、曲成機30を軸ジャーナル12の外側部品12cの外側端部に対して作用させることによって行う。本実施例では、曲成機30はねじ部材30で構成され、ねじ部材は第２の支持用スリーブ17の端部を通り、更に軸ジャーナル12の外側部品12cの外側端部を通って延びている。ねじ部材30には、実質的に第２の支持用スリーブ17を貫通して延びている外ねじ山が設けられていて、軸ジャーナルの外側部品12cを貫通して延び、ねじ部材30を受け入れる孔には、対応する内ねじ山が設けられている。更に、ねじ部材のそれ自身の長手軸方向の運動は、係止用部材31、32によって妨げられ、係止用部材は、支持用スリーブ17の外面で支持され、ねじ部材30へ例えばコッタピンによって取り付けられている。ねじ部材30を回すと、軸ジャーナル12が曲げられ、連接部材16は、第２の支持用スリーブ17に対して軸ジャーナル12を軸方向へ移動させる。軸ジャーナル12がロールマントル11の両端部で曲げられると、ロールマントル11も曲げられ、所望の曲成形状になる。
【００２１】
図２では、調整装置40によって第２の支持用スリーブ17をその円周方向に回転可能である。第２の支持用スリーブ17を円周方向に回すと、ねじ部材30が回り、したがって、軸ジャーナル12も同様に回転する。したがって、ねじ部材30によって、ロールマントル11用の所望の曲成形状が調整され、調整装置40によってロールマントル11の曲成形状の方向は、ロールマントル11の円周方向に調整される。第２の支持用スリーブ17は第１の固定用部材18および第２の固定用部材19内に取り付けられ、調整装置40の作用以外のいかなる方法においても固定用部材18、19に対して回転不能である。これにより、軸ジャーナル12も調整装置40の作用以外には固定用部材18、19に対して回転不能である。第１の固定用部材18には第１の軸受け部材20が設けられていて、それは、第２の支持用スリーブ17の回転およびわずかな軸方向の移動を可能にしている。更に、第２の固定用部材19には同様の第２の軸受け部材21が設けられていて、それは、第２の支持用スリーブ17のわずかな軸方向への移動を可能にしている。この第２の軸受け部材21は支持用スリーブ17によって固定され、支持用スリーブ17は、第２の軸受け部材21に対して円周方向に回転不能とされている。更に、第２の軸受け部材21は中間部材22によって調整装置40に連結されている。したがって、中間部材22および第２の軸受け部材21を介して調整装置40は第２の支持用スリーブ17に対して作用し、その関連で、第２の支持用スリーブ17は調整装置40の作用によって円周方向に回転する。
【００２２】
次に、図３〜図14に示す実施例を、それらが図２に示す実施例と異なる点のみについて説明する。図３〜図14において、図２で用いられたのと同様の部品に対しては、同一の参照番号を用いる。
【００２３】
図３は、ロールマントルを曲げて曲成形状にするねじ部材30が、図２の実施例に示すように第２の固定用部材19の後でなく、第１の固定用部材18とロールマントル11端部との間に配されている実施例を示す。軸ジャーナル12の部品12bおよび12cはここでは位置を変えているが、その連接点16は第２の固定用部材19のところに配されている。
【００２４】
図４は、図２の実施例と固定用部材18、19に関して異なる実施例を示す。図２の実施例では、２つの完全に別個の固定用部材18、19が用いられていて、これによって、軸ジャーナル12に取り付けられた第２の支持用スリーブ17は抄紙機のフレームＲへ固着されている。図４の実施例では、固定用フランジ構体が使用されていて、２つの固定用部材18、19があり、それらは、抄紙機のフレームＲに固着された共通の下部部品90を有する。したがって、第２の支持用スリーブ17は依然として、２つの固定点でフランジ構体へ固着されていて、そのフランジは、固定用フランジ構体の最上部分が一体化されていると考えることもできる。
【００２５】
図５は図２に示す実施例とロール曲成機に関して異なる実施例を示す。本実施例では、ロール曲成機はねじ部材60から成り、ねじ部材60は、ロール軸Ｘ−Ｘに平行で、外ねじ山が設けられ、第２の支持用スリーブ17の外側端部に配されている。ねじ部材60は係止用部材61にはめ込まれ、部材61は、第２の支持用スリーブ17の内面へ、その外側端部において固定され、部材61には、内ねじ山付きの孔が設けられていて、内ねじ山は、ねじ部材60を受け入れ、ロールの軸Ｘ−Ｘと平行である。ねじ部材60の内側端部は第１のくさび部材70の端面に対して配されている。第１のくさび部材70は、実質的にロールの軸Ｘ−Ｘに平行に、第２の支持用スリーブ17の内面上をねじ部材60の作用によって移動するが、第２の支持用スリーブ17の内面に対して固定されていて、半径方向の動きを妨げられている。この第１のくさび部材70のくさび面も同様に、軸ジャーナル12のうちの１つである外側部品12cへ固着されたくさび部材71のくさび面に対して配されている。第１のくさび部材70がねじ部材60によって同図では左へ、第２のくさび部材71上へ動かされると、軸ジャーナル12が曲がり、したがってロールマントル11も曲がる。
【００２６】
図６は図２〜図５に示す実施例と曲成機に関して異なる実施例を示す。曲成機100として、液圧式もしくは空圧式シリンダ、またはステッピングモータを使用している。シリンダまたはステッピングモータのロッド101は軸ジャーナル12の延長部12dへ取り付けられていて、シリンダまたはモータは第２の支持用スリーブ17へ取り付けられている。したがって、ロッド101の垂直運動が軸ジャーナル12の曲成を生じる。
【００２７】
図７は、本発明によるロールの実施例の概略図であり、図２〜図６に示す実施例に比べ、ロールの回転の軸受けがロールマントル11の外側に配されている点で異なる。本実施例では、軸ジャーナル12はロールの端部部材52へ取り付けられ、端部部材はロールマントル11に固定されていて、その場合、軸ジャーナル12はロールマントル11に従って回転する。他方、軸ジャーナル12は第１の支持用スリーブ50へ、軸受け14、15によって回転可能に取り付けられている。ここでは、軸ジャーナル12は少なくともその前記軸受け14、15間の部分では実質的に均一の厚さである。第１の支持用スリーブ50は第２の支持用スリーブ51によって囲まれ、スリーブ51は、抄紙機のフレームＲへ、前記軸受け14、15のところでロールの軸Ｘ−Ｘの方向に配されている固定用部材18、19によって、固着されている。端部部材52の次に配されている第２の支持用スリーブ51の端部には肉厚部分51aがあり、これは、第１の固定用部材18を横断してロールの軸Ｘ−Ｘ方向に延びている。肉厚部分51aでは、第２の支持用スリーブ51の内径は、肉厚部分51aの後に続く延長部品51bの内径より小さい。したがって、第１の支持用スリーブ50と、第２の支持用スリーブ51の延長部51bとの間には空間53が残り、その中で第１の支持用スリーブ50の外側端部が半径方向に動くことができる。第２の支持用スリーブ51の肉厚部分51aは第１の支持用スリーブ50の連接部材を形成し、これに支持されて、第１の支持用スリーブ50と第２の支持用スリーブ51との間でロールの軸Ｘ−Ｘ方向のわずかな動きが可能になる。
【００２８】
図７に示す実施例では、曲成機80も、第２の固定用部材19の外側に設置されたねじ部材80を含み、ねじ部材は第１の支持用スリーブ50および第２の支持用スリーブ51の両方を貫通して延びている。これに対して、ねじ部材80は軸ジャーナル12を貫通して延びていず、軸ジャーナルは、第２の支持用軸受け15のところの、ねじ部材80の手前で終端している。ねじ部材80には、実質的に第１の支持用スリーブ50および第２の支持用スリーブ51を貫通する部分に、外ねじ山が設けられている。ねじ部材80自身の長手軸方向の、第１の支持用スリーブ50に対する動きは、第１の係止用部材81、82によって妨げられ、部材81、82は、第１の支持用スリーブ50の内面に対して設置されていて、例えばコッタピンによってねじ部材80へ固定されている。更に、第２の支持用スリーブ51の外面には第２の係止用部材83、84が取り付けられていて、それらにはねじ部材80を受け入れる内側ねじ山付きの孔が設けられている。
【００２９】
図７では、ロールの軸ジャーナル12の曲成を生じ、第１の支持用スリーブ50の外側端部は、ねじ部材80によって第２の支持用スリーブ51に対して移動する。その関係上、第２の外側軸受け15の中心点はロールの中心軸Ｘ−Ｘから外れ、その場合、軸ジャーナル12は曲げられ、ロールマントルも曲げられる。
【００３０】
図８は図７に示す実施例とロール曲成機に関して異なる実施例を示す。本実施例では、図５に示す実施例において説明した曲成機が用いられる。ここでは、ねじ部材60は係止用部材61にはめ込まれていて、部材61は第２の支持用スリーブ51の内面へその外側端部のところで固着されていて、部材61にはねじ部材60を受け入れる内ねじ山が設けられている。係止用部材61を第２の支持用スリーブ51の内面に取り付け可能とするため、第１の支持用スリーブ50は、第２の支持用スリーブ51よりわずかに短い。ここでは、第２のくさび部材71は第１の支持用スリーブ50の外面へ取り付けられていて、その場合、ねじ部材60によって調整されながら、くさび部材70、71は第１の支持用スリーブ50を曲げる。
【００３１】
図９は図７および図８に示す実施例とロールの曲成機に関して異なる実施例を示す。ここでは、曲成機100として、液圧式もしくは空圧式シリンダ、またはステッピングモータを使用している。シリンダまたはステッピングモータのロッド101は第１の支持用スリーブへ取り付けられていて、シリンダまたはステッピングモータは第２の支持用スリーブへ取り付けられている。したがって、ロッド101の垂直運動が軸ジャーナル12の曲成を生じる。
【００３２】
図10は、本発明の実施例であって、曲成を２つの曲成手段120、130によって、互いに直交する２つの平面で行うものを示す。曲成手段120、130は一方の端部から実質的にＬ型断面の支持梁110へ取り付けられていて、支持梁はまた抄紙機のフレームＲへ取り付けられている。他方、曲成手段120、130の反対側の端部は第２の軸受け15を取り巻くフランジ113へ取り付けられている。第１の曲成装置120は軸ジャーナル12を垂直平面Ｙに沿って移動させ、第２の曲成装置130は軸ジャーナル12を水平面Ｘに沿って移動させる。このような構造によって、ロールの所望の曲成形状を、例えば第１の曲成装置120によって調整可能であり、ロールの曲成形状の所望の角度位置を第２の曲成装置130によって調整可能である。
【００３３】
図10に示す曲成手段120、130を構成するのは、内ねじ山を設けたナット部材123、133と、フランジ113へ固定され外ねじ山を設けていて前記ナット部材の一方の端部へ取り付けられた第１のピン121、131と、梁110上を移動するスレッジ124、134へ固定され外ねじ山を設けていて前記ナット部材123、133の反対側の端部へ取り付けられた第２のピン122、132とである。ナット部材123、133を回転させると、軸ジャーナル12を、それによってロールマントル11をＸ−Ｘ平面で曲げることができる。このような構造によって、ロールマントル11の曲成形状および前記曲成形状の角度位置の両方を調整可能である。スレッジ124は、梁110の水平部に取り付けられていて、車輪125の支持によりＸ平面上で移動可能であるが、梁110についてのＹ平面上の移動は固定されている。同様に、梁110の垂直部に取り付けられているスレッジ134は車輪135の支持によりＹ平面上で移動可能であるが、梁110についてのＸ平面上の移動は固定されている。スレッジ124、134の車輪125、135はガイドレール、または梁110上に作られている等価物上を転動する。車輪構造物125、135は、スレッジ124、134を梁110上へ取り付け可能として、スレッジ124の方向Ｘへの動きおよびスレッジ134の方向Ｙへの動きを可能とする方法の一例にすぎない。ナットピンの方法に代えて、ここでは、例えば液圧式もしくは空圧式シリンダ、またはステッピングモータを用いることもできる。
【００３４】
図11は図10に示す実施例の変形を示し、ここでは軸ジャーナル12の軸受けおよび曲成は少なくとも１つの磁気軸受けによって行われる。軸受け14、15の少なくとも一方は磁気軸受け15であり、これによってロールの軸ジャーナル12を曲げ、それによってロールマントル11を曲げることができる。磁気軸受け15の磁石250の磁束と、それによって磁石250により軸ジャーナル120へ加えられる力とが調整され、軸ジャーナル12をハウジングに対して偏心させて移動可能である。したがって、磁気軸受け15はロール軸12の曲成を可能にし、それによってロールマントル11のＸ−Ｙ各平面における所望の曲成形状への曲成と、所望の姿勢に曲げて作ったロールマントル11の円弧の角度位置の調整とを可能とする。
【００３５】
図12は図10に示す実施例の第２の変形を示し、ここでは軸ジャーナル12の曲成および曲成の角度位置は磁石260によって調整される。第２の軸受けを取り巻くフランジ19aと、抄紙機のフレームＲへ取り付けられたフランジ19aの基部19bとは、磁石260によって互いに連絡している。磁石260は複数のセクタ状部分から成り、各セクタの磁束は独立に調整可能である。そのような構成により、軸ジャーナル12を所望のようにＸ−Ｙ各平面で曲成可能である。
【００３６】
図13は図10に示す実施例の第３の変形を示し、ここでは、軸ジャーナル12の曲成はナット部材153によって行われ、曲成の角度位置はラック歯車装置160、150によって調整される。第２の軸受け15を取り巻くフランジ113は歯車装置150へ、ナット部材153によって取り付けられている。内ねじ山が設けられたナット部材153は図11に示すナット部材123、133と等価であり、その端部のうち一方には、軸受けフランジ113から突出していて外ねじ山を設けたピン151が取り付けられ、その反対側の端部には、歯車装置150から突出していて外ねじ山が設けられたピン152が取り付けられている。歯車装置150は歯車装置150上にそのシャフト155によって取り付けられた歯車154を含む。歯車154のシャフト155は歯車装置150から突出していて、その突出部分は望ましくは四辺形断面であり、その場合、それを、例えば目的に適したてこ具によって回転可能である。ラック装置160は実質的に円弧の形をしたラック161を含み、それに沿って歯車154が走行する。ラック装置160は更にガイド部162を含み、それは歯車装置150の案内溝156内を摺動する。ラック装置160は梁140へ取り付けられ、これも抄紙機のフレームＲへ取り付けられている。ナット装置153を回転させると、ラック161から軸ジャーナル12の中心軸Ｘ−Ｘへの距離は調節可能であり、これによって軸ジャーナル12を曲げ、それによってロールマントル11を曲げることができる。他方、歯車装置150の歯車154によって、ロールマントル11の曲成形状の角度位置を調整可能である。スレッジ150をラック161に対して締め付けるねじ固定用装置157によって、歯車装置150をラック161上の所望の角度位置に固定可能である。
【００３７】
図14は、本発明による実施例であって、軸ジャーナル12の曲成を軸ジャーナル12へ取り付けられた円盤部材180によって行うものを示す。抄紙機のフレームＲへ取り付けられた固定用フランジ構体170は、実質的に長方形の２つの垂直壁を互いに軸方向に間隔をおいて配し、すなわち前壁171および後壁172を含む。前壁171および後壁172の底縁および上縁は、実質的に長方形で水平な底壁173および天井壁174によって相互連結されている。これと同様に、前壁171および後壁172の側縁は、実質的に長方形の縦の第１の側壁175および第２の側壁176によって相互連結されている。それらの壁171、172、173、174、175、176はそれらの内部に空洞の空間190を画成し、その空間内では軸ジャーナル12へ取り付けられた円盤180が軸ジャーナル12とともに回転する。軸ジャーナル12は固定用フランジ構体170の前壁171内に設けられた孔177と、後壁172内に設けられた孔178とを通って延びていて、後壁172内の軸受け15によって回転可能に取り付けられている。前壁に設けられた孔の直径は軸ジャーナル12の外径より大きい。
【００３８】
更に、図14に示す実施例では、円盤180の外周上の両側面180a、180b上に液圧式負荷用要素190、191が取り付けられていて、これによって円盤180を曲げ、それによって軸ジャーナル120を曲げることができる。それら負荷用要素190、191のピストン190a、191aは、固定用フランジ構体170の前壁171および後壁172の中へ作られたシリンダ200、201内で動く。シリンダ200、201の底部へは加圧媒体ダクト210、211が通っている。ピストン190a、191aはシリンダ200、201内において、それ自体公知の密封部材によって密封されていて、その部材は図示しない。更に、細い毛管ダクト（図示しない）がピストン190a、191aを通って負荷用要素190、191の潤滑ポケット220、221の中へ入っている。円盤180のそれぞれの面180a、180bには望ましくは４つの負荷用要素190、191、すなわち合計８つの要素が配されている。負荷用要素190、191は軸ジャーナル12の中心に描いた円の円周と、Ｘ軸およびＹ軸との交点に配されている。
【００３９】
図14に示す実施例では、軸ジャーナル12に取り付けられた円盤180と、前記円盤に対して作用する液圧式負荷用要素190、191とによって、軸ジャーナル12は曲げられ、それによってロールマントル11が曲げられる。８つの負荷用要素190、191によって、ロールマントル11は、所望の曲成形状および所望の角度位置に曲成可能である。
【００４０】
図15は、曲成機、軸受け構造および軸ジャーナルの点で前出の各図に示す実施例と異なる実施例を示す。本実施例では、軸ジャーナル12はその全長にわたって実質的に均一な厚さであり、曲がっていない。ロールマントル11の内側に取り付けられた第１の支持用スリーブ13内の軸ジャーナル12の軸着は、静圧式または動圧式滑り軸受け70、71によって配設されていて、それらの支持により、ロールマントル11は軸ジャーナル12に対して回転する。滑り軸受け70、71は互いに間隔をおいてロールの軸Ｘ−Ｘの方向に配されている。液圧媒体の供給ダクトおよび戻りダクトとしては、軸ジャーナルの軸Ｘ−Ｘに平行したダクト72が、軸ジャーナル12の中へ、滑り軸受けの位置にある半径ダクト73、74と共に作られている。滑り軸受けとしてのみ作動する第１の軸受け70は軸ジャーナル12へ連接継手によって取り付けられ、その中心軸Ｙ−Ｙは軸ジャーナル12の半径に対して回転可能である。
【００４１】
図15に示す実施例では、滑り軸受けの特性に加えて、第２の軸受け71は、当該軸受けを、軸ジャーナル12の半径の方向に移動させる可能性を有して設けられている。この第２の軸受け71は軸ジャーナル12へ取り付けられ、軸ジャーナル12の半径方向に移動可能となると同時に、その中心軸Ｙ−Ｙは軸ジャーナル12の半径に対して回転可能である。この第２の軸受け70の中へは、独立に制御可能な２つの液圧式供給装置74a、74bが通されている。この構造によって、軸受け71の軸ジャーナル12の半径に対する動きは制御可能である。軸受け71を軸ジャーナル12の半径に対して移動させると、ロールマントル11へ加わる曲げの力が生成される。
【００４２】
曲成装置30をロールと最寄りの固定用要素18との間に配している図３に示す他の実施例は、むろん、図４〜図９に示す実施例にも適用可能である。
【００４３】
図10〜図13では、第２の外側の支点で、ロールの端部52に対して曲成が実行される様子が示されているが、逆の場合も可能である。そのような場合、曲成機は内側の支点に配され、外側の支点は固定される。
【００４４】
図２〜図５、図７・図８、図10および図13に示す実施例では、ロールマントル11の曲成は、ねじ30、80と、ねじナット組立体120、130、151〜153と、くさび70またはその等価物とによる強制移動によって行われる。ねじ30、80と、ねじナット組立体120、130、151〜153と、くさび70またはその等価物とは、軸ジャーナル12をその支点に動かないように拘束し、その場合ロールは、振動という意味においては、いわゆる固定支持になっている。
【００４５】
図６、図９、図11・図12および図14に示す実施例では、ロールマントルの曲成は液圧式もしくは空圧式によって、またはステッピングモータ100、101、190、250、260によって行われ、その場合、ロールは振動という意味においては、いわゆる自由支持または連接支持になっている。液圧媒体および空圧媒体は通常、ある程度まで降伏していて、その場合、支持は、わずかな程度の弾性を備える。
【００４６】
図15に示す実施例では、ロールマントル15の曲成は直接にロールマントル11から、軸ジャーナル12の支点の内側から行われる。その場合、軸受け70、71はロールを第１の支持用スリーブ13に動かないように拘束する。したがって、本実施例においても、ロールは振動という意味においては固定支持になる。
【００４７】
厳密支持の場合、ロールの最低の自然周波数は、自由支持ロールと比べると２倍以上の高さになる。ロールの自然周波数が高くなると、より小さいロール径を用いることができ、その場合、曲成から抄紙機のフレームに伝達される力は減少し、ロールの製造費用は低減される。
【００４８】
次に、特許請求の範囲を示すが、本発明の内容をこの特許請求の範囲に記載する本発明の概念の範囲内で改変し、例としてのみ上述したものとは異なるものとすることができる。
【図面の簡単な説明】
【図１】連続した管状ロールマントルをロールマントルの両端部にトルクを掛けることによって曲成する概略原理図である。
【図２】軸受けがロールマントルの内部に取り付けられ曲成機がねじ部材である本発明によるロールの実施例の概略図である。
【図３】図２に示す実施例の変形を示す図である。
【図４】図２に示す実施例の第２の変形を示す図である。
【図５】図２に示す実施例の第３の変形を示す図である。
【図６】図２に示す実施例の第４の変形を示す図である。
【図７】軸受けがロールマントルの外側に取り付けられ曲成機がねじ部材である本発明によるロールの実施例の概略図である。
【図８】図７に示す実施例の変形を示す図である。
【図９】図７に示す実施例の第２の変形を示す図である。
【図１０】軸受けがロールマントルの外側に取り付けられロールの曲成が２つの平面において行われる本発明によるロールの実施例の概略図である。
【図１１】図10に示す実施例の変形を示す図である。
【図１２】図10に示す実施例の第２の変形を示す図である。
【図１３】図10に示す実施例の第３の変形を示す図である。
【図１４】軸受けがロールマントルの外側に取り付けられ、ロールの曲成は軸ジャーナルへ取り付けられた円盤と、円盤に対して作用する液圧式負荷要素とによって行われる本発明によるロールの実施例の概略図である。
【図１５】滑り軸受けがロールマントルの内部に採用され液圧に基づいた曲成機が滑り軸受けに連結された本発明によるロールの実施例の概略図である。[0001]
The present invention relates to a roll that can be bent for a web-like material as described in the first stage of claim 1.
[0002]
Most commonly, a bendable roll is a roll consisting of a continuous shaft and multiple parts attached to the shaft. Mantle It is formed to include. Such a roll is a roll Mantle Can be bent into the desired shape by moving the outermost pivot point of Mantle Form an arc or a broken line. Mantle In principle, the components are individually attached to the shaft, in which case the structure comprises a number of bearings (hereinafter also referred to as “bearings”). Conventional systems are often problematic and include, among other things, bearing problems in the roll and heat peaks caused by the bearings in the paper web. Multiple parts roll Mantle Causes more serious problems. This is because the gap between the parts leaves a scar on the paper web, the arc shape of the roll is not optimal, and the shape line of the roll is broken. In addition, metallic rolls Mantle Cause corrosion problems.
[0003]
The roll described in the Finnish utility model registration No. 2788 by the applicant of the present application is a non-rotating roll shaft and a roll rotatably attached to the shaft by a bearing. Mantle Including. roll Mantle Is a continuous tubular Mantle The roll shaft is composed of three parts connected to each other. The inner end of the two end parts of the roll shaft, which is hollow inside, extends at a distance into the interior of the hollow tubular central part of the shaft. A support sleeve is mounted in the end area of the roll, and the roll is attached to the sleeve. Mantle It is attached. roll Mantle Are attached to each of the end parts of the shaft by means of two bearings spaced axially from each other via the support sleeve. The end part of the shaft is connected to the central part of the shaft by a connecting member, and the end part of the shaft can be tilted with respect to the central part of the shaft. This tilting is performed so that the shaft end piece moves radially relative to the shaft center piece. The roll bender includes a cam member that forms a lever with two arms and is rotatably mounted on the wall of the tubular end piece. The inner end of the cam member extends through the wall of the tubular end piece to the outside of the end piece and is supported on the inner surface of the central piece. An auxiliary movable adjustment rod is mounted inside the tubular end piece and its inner end is supported against the cam member. When the cam member moves in the axial direction, the cam member can rotate and is supported with a strong force against the inner surface of the central part of the shaft, and at the same time the distance between the end part of the shaft and the central part is the cam It becomes larger on the part side, in which case the axis bends. roll Mantle May be made of steel or composite.
[0004]
While the method described in the Finnish Utility Model Registration No. 2788 is effective in itself, it is relatively complex and expensive.
[0005]
The roll described in the applicant's Finnish patent application No. 970379 consists of two end parts and a central part. In this method, it rotates around the axis Mantle The roll does not include a roll with a separate axis, but its central part also acts as the axis of the roll, which is attached to its supporting member by an end bearing. The extension of the central part acting as a shaft has a diameter substantially smaller than the diameter of the central part and its dimensions are comparable to the diameter of a normal non-rotating shaft. The end parts of the roll are tubular parts, which are attached directly to the extension of the central part, and at the inner end of the end part, the connecting means are attached inside the tubular end part. The tubular end piece is axially supported by bearings in the area of the respective outer end and is attached to a support piece independent of the rotating part. The support part consists of a sleeve-like part, the inner diameter of which is larger than the diameter of the extension of the central part, and the position of the bearing can be adjusted in the radial direction. Adjusting the position of the bearing of the tubular end piece makes it possible to adjust both the degree of the roll shape and the direction of the roll shape of the roll. Such a roll Mantle A composite material may be used as the material.
[0006]
In the Finnish Patent Application No. 970379, a roll Mantle A shaft extending through is used, and the overall structure of the roll is relatively complex, increasing the cost of the roll.
[0007]
Finnish Patent Application No. 951288 includes a continuous roll Mantle Or a roll of multiple parts Mantle A roll provided with is described. roll Mantle The material is a reinforced plastic or a composite structure similar thereto. Role is that role Mantle A continuous support shaft is provided extending throughout, and the shaft does not rotate and is supported in place. A central portion of the support shaft has a thick portion, and a central bearing of the roll is attached thereto. Said bearing is supported by an annular mounting part, whereby the outer raceway of the bearing is rolled Mantle It is supported by. Sleeves are attached to both ends of the roll. Mantle Roll further at a certain distance to the inside of Mantle It extends a certain distance outside. roll Mantle Both ends of the shaft are pivotally attached to the sleeve. Sleeve, roll Mantle An adjustment screw is attached to the outer portion of the sleeve so that the sleeve can be deflected from the center line formed by the support shaft. While the sleeve is deflected from the center line formed by the support shaft, the center of the outermost bearing in the roll deviates from the center line, in which case the roll Mantle Is bent, but the supporting shaft is always kept straight.
[0008]
In the Finnish patent application No. 951288, the roll Mantle A continuous support shaft extending throughout is used, with a thickened portion at the center. This roll is therefore relatively expensive and heavy. Further, the roll has a bearing at the thick portion of the support shaft at the center of the roll. These bearings attached to the center of the roll Mantle Causing the heat problem in the outer raceway and roll of the bearing Mantle Attempts have been made to alleviate the thermal problem by installing an annular attachment between the inner surface of the substrate.
[0009]
European Patent Application No. 363,887 describes a roll made of composite material. The technology of the European patent application is a roll Mantle Relates to the structure and materials of various surface layers. FIG. 4 shows a rotary roll manufactured by this technique and oriented at a very high speed. The roll is a roll made of a composite material. Mantle And roll Mantle The shaft journals are provided at both ends. Axis journal roll Mantle Connected by an end flange. The European patent application clearly rolls Mantle The purpose of this invention is to manufacture a roll having sufficient surface hardness, light weight, and high dimensional accuracy. This patent application does not mention roll bending.
[0010]
Composite rolls are of great interest due to their many advantageous properties. Composite roll Mantle The above-described roll system, which can also be used, however, is cumbersome and expensive.
[0011]
Due to the advantageous material properties of the composite roll, such as elastic modulus and density coefficient, the composite roll can be dimensioned and bent with a reasonable torque to the desired bend shape, which is below the critical speed That is, it operates at a speed below the lowest resonance frequency or between resonance frequencies. If the steel roll is bent into the required bend without significantly increasing the strain, the roll diameter needs to be very small. In such cases, one or several critical speeds of the roll must be exceeded.
[0012]
In the case of a steel roll, the bending torque required for the bending is also considerably larger than in the case of a composite roll, and in that case, the bearing force in the steel roll is also considerably greater than in the case of a composite roll.
[0013]
The scheme according to the present invention provides a substantial improvement over the bendable prior art rolls.
[0014]
The main constituent elements of the roll according to the present invention are described in the characterizing stage of claim 1.
[0015]
The roll according to the invention comprises a continuous tubular roll made of composite material Mantle There is. roll Mantle There are shaft journals at both ends of the paper, whereby the roll is attached to the frame of the paper machine. Thus, the roll does not have any shaft that penetrates the roll. Compared to a conventional overhanging roll, the structure of the roll according to the invention is clearly simple and there is little need for maintenance. With this simple structure, rolls are easy to manufacture and low cost. Furthermore, the roll can be easily repaired by this simple structure.
[0016]
Next, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited to the contents of the drawings.
[0017]
1 shows torque M ₁ , M ₂ The roll Mantle Roll by hanging on both ends of 11 Mantle FIG. Torque M ₁ Is the torque M ₂ It may be different from the size of the roll. Mantle The running of the web on 11 can be controlled in the axial direction of the roll.
[0018]
FIG. 2 shows an embodiment of a roll according to the invention. In the figure, one end area of the roll is shown. The roll is a continuous tubular roll made of composite material Mantle Consisting of 11 Mantle Is mounted for rotation on the shaft journal 12. roll Mantle The first support sleeves 13 are attached to the end areas of the rolls, Mantle 11 itself is also attached. roll Mantle 11 is attached to the shaft journal 12 by bearings 14 and 15 via the first support sleeve 13. The bearings 14 and 15 are mounted in the direction of the roll axis XX at a constant distance from one another, so that they form a pair of bearings.
[0019]
In FIG. 2, the shaft journal 12 consists of three parts 12a, 12b, 12c, which all have different diameters. roll Mantle Inner part 12a extending into the end area of 11 has a maximum diameter D ₁ The next central part 12b is a roll Mantle A slightly smaller diameter D, directed outward from the end of 11 ₂ And the outer part 12c following the central part 12b has a slightly smaller diameter D than the central part 12b. _Three Have Of course, the shaft journal 12 can be physically integrally formed, and in this case, the parts 12a, 12b, and 12c are made by cutting with a lathe, for example. There is a protrusion 16 at the center of the central part 12b of the shaft journal 12, which extends around the outer periphery of the shaft journal and forms a connecting member. A second support sleeve 17 is attached to the outer part 12c of the shaft journal and partly to the central part 12b. The second support sleeve 17 extends beyond the protrusion 16 provided in the central part 12 b of the shaft journal 12, and the inner diameter of the second support sleeve 17 is substantially equal to the outer diameter of the protrusion 16. be equivalent to. The second support sleeve 17 is fixed to the frame R of the paper machine by two fixing members 18 and 19. The first fixing member 18 is disposed at the protrusion 16, and the second fixing member 19 is spaced from the outer end of the outer part 12 c of the shaft journal 12 and the second support sleeve 17 by a certain distance. It is arranged.
[0020]
In FIG. 2, bending the roll into a curved shape is performed by causing the bending machine 30 to act on the outer end of the outer part 12 c of the shaft journal 12. In this embodiment, the bending machine 30 is constituted by a screw member 30 that extends through the end of the second support sleeve 17 and further through the outer end of the outer part 12c of the shaft journal 12. Yes. The screw member 30 is provided with an outer thread extending substantially through the second support sleeve 17 and extending through the outer part 12c of the shaft journal to receive the screw member 30. Are provided with corresponding internal threads. Furthermore, the longitudinal movement of the screw member itself is hindered by the locking members 31, 32, which are supported on the outer surface of the support sleeve 17 and are attached to the screw member 30 by means of cotter pins, for example. It has been. When the screw member 30 is turned, the shaft journal 12 is bent, and the connecting member 16 moves the shaft journal 12 in the axial direction with respect to the second support sleeve 17. Axis journal 12 rolls Mantle 11 rolls when bent at both ends Mantle 11 is also bent into the desired curved shape.
[0021]
In FIG. 2, the second support sleeve 17 can be rotated in the circumferential direction by the adjusting device 40. When the second support sleeve 17 is rotated in the circumferential direction, the screw member 30 is rotated, and thus the shaft journal 12 is similarly rotated. Therefore, the roll by the screw member 30 Mantle 11 desired bend shape is adjusted and rolled by adjusting device 40 Mantle 11 curved shape direction roll Mantle Adjusted in 11 circumferential directions. The second support sleeve 17 is mounted in the first fixing member 18 and the second fixing member 19 and cannot rotate with respect to the fixing members 18, 19 in any way other than the action of the adjusting device 40. It is. Thus, the shaft journal 12 is also not rotatable with respect to the fixing members 18 and 19 except for the action of the adjusting device 40. The first fixing member 18 is provided with a first bearing member 20 which allows the second support sleeve 17 to rotate and move slightly in the axial direction. Furthermore, the second fixing member 19 is provided with a similar second bearing member 21 which allows the second supporting sleeve 17 to be moved slightly in the axial direction. The second bearing member 21 is fixed by a support sleeve 17, and the support sleeve 17 is not rotatable in the circumferential direction with respect to the second bearing member 21. Further, the second bearing member 21 is connected to the adjusting device 40 by the intermediate member 22. Therefore, the adjusting device 40 acts on the second support sleeve 17 via the intermediate member 22 and the second bearing member 21, and in this connection, the second support sleeve 17 is operated by the action of the adjusting device 40. Rotate in the circumferential direction.
[0022]
Next, the embodiment shown in FIGS. 3 to 14 will be described only with respect to differences from the embodiment shown in FIG. 3 to 14, the same reference numerals are used for the same parts as those used in FIG.
[0023]
Figure 3 shows a roll Mantle The screw member 30 bent into a curved shape is not provided after the second fixing member 19 as shown in the embodiment of FIG. 2, but with the first fixing member 18 and the roll. Mantle The Example distribute | arranged between 11 edge part is shown. The parts 12b and 12c of the shaft journal 12 are changed in position here, but their connecting contacts 16 are arranged at the second fixing member 19.
[0024]
FIG. 4 shows a different embodiment with respect to the embodiment of FIG. In the embodiment of FIG. 2, two completely separate fixing members 18, 19 are used, whereby the second support sleeve 17 attached to the shaft journal 12 is secured to the frame R of the paper machine. Has been. In the embodiment of FIG. 4, a fixing flange assembly is used and there are two fixing members 18, 19 which have a common lower part 90 secured to the frame R of the paper machine. Thus, the second support sleeve 17 is still secured to the flange assembly at two fixing points, and the flange can also be considered to be an integral part of the uppermost portion of the fixing flange assembly.
[0025]
FIG. 5 shows an embodiment different from the embodiment shown in FIG. In this embodiment, the roll bending machine comprises a screw member 60, which is parallel to the roll axis XX and provided with an external thread, and is arranged at the outer end of the second support sleeve 17. Has been. The screw member 60 is fitted into the locking member 61. The member 61 is fixed to the inner surface of the second support sleeve 17 at the outer end thereof, and the member 61 is provided with a hole with an inner thread. The inner thread receives the screw member 60 and is parallel to the roll axis XX. The inner end portion of the screw member 60 is disposed with respect to the end surface of the first wedge member 70. The first wedge member 70 moves on the inner surface of the second support sleeve 17 substantially parallel to the roll axis XX by the action of the screw member 60, but the second support sleeve 17 It is fixed to the inner surface and prevents radial movement. Similarly, the wedge surface of the first wedge member 70 is also arranged with respect to the wedge surface of the wedge member 71 fixed to the outer part 12c, which is one of the shaft journals 12. When the first wedge member 70 is moved by the screw member 60 to the left in the figure and onto the second wedge member 71, the shaft journal 12 bends and therefore rolls. Mantle 11 also turns.
[0026]
FIG. 6 shows an embodiment different from the embodiment shown in FIGS. As the bending machine 100, a hydraulic or pneumatic cylinder or a stepping motor is used. The cylinder or stepping motor rod 101 is attached to the extension 12 d of the shaft journal 12, and the cylinder or motor is attached to the second support sleeve 17. Therefore, the vertical movement of the rod 101 causes the shaft journal 12 to bend.
[0027]
FIG. 7 is a schematic view of an embodiment of the roll according to the present invention, and the roll rotation bearing is a roll as compared with the embodiment shown in FIGS. Mantle 11 is different in that it is arranged outside. In this embodiment, the shaft journal 12 is attached to the end member 52 of the roll, and the end member is the roll. Mantle 11 and in that case the shaft journal 12 rolls Mantle Rotate according to 11. On the other hand, the shaft journal 12 is rotatably attached to the first support sleeve 50 by bearings 14 and 15. Here, the shaft journal 12 has a substantially uniform thickness at least in the part between the bearings 14,15. The first support sleeve 50 is surrounded by a second support sleeve 51, which is arranged in the direction of the roll axis XX at the bearings 14, 15 to the frame R of the paper machine. It is fixed by fixing members 18 and 19. At the end of the second support sleeve 51 arranged next to the end member 52, there is a thickened portion 51a, which crosses the first fixing member 18 and has a roll axis XX. Extending in the direction. In the thick part 51a, the inner diameter of the second support sleeve 51 is smaller than the inner diameter of the extension part 51b following the thick part 51a. Therefore, a space 53 remains between the first support sleeve 50 and the extension 51b of the second support sleeve 51, in which the outer end of the first support sleeve 50 is in the radial direction. Can move. The thick portion 51 a of the second support sleeve 51 forms a connecting member of the first support sleeve 50, and is supported by the connecting member to the first support sleeve 50 and the second support sleeve 51. A slight movement of the roll in the direction of the axis XX is possible.
[0028]
In the embodiment shown in FIG. 7, the bending machine 80 also includes a screw member 80 installed outside the second fixing member 19, and the screw members are the first support sleeve 50 and the second support sleeve. 51 extends through both. On the other hand, the screw member 80 does not extend through the shaft journal 12, and the shaft journal terminates in front of the screw member 80 at the second support bearing 15. The screw member 80 is provided with an external thread at a portion that substantially penetrates the first support sleeve 50 and the second support sleeve 51. The movement of the screw member 80 itself in the longitudinal direction relative to the first support sleeve 50 is hindered by the first locking members 81, 82, and the members 81, 82 are arranged on the inner surface of the first support sleeve 50. For example, it is fixed to the screw member 80 by a cotter pin. Further, second locking members 83 and 84 are attached to the outer surface of the second support sleeve 51, and they are provided with inner threaded holes for receiving the screw members 80.
[0029]
In FIG. 7, the roll shaft journal 12 is bent and the outer end of the first support sleeve 50 is moved relative to the second support sleeve 51 by the screw member 80. Therefore, the center point of the second outer bearing 15 deviates from the center axis XX of the roll, in which case the shaft journal 12 is bent and the roll Mantle Can also be bent.
[0030]
FIG. 8 shows an embodiment different from the embodiment shown in FIG. In this embodiment, the bending machine described in the embodiment shown in FIG. 5 is used. Here, the screw member 60 is fitted into the locking member 61, and the member 61 is fixed to the inner surface of the second support sleeve 51 at the outer end thereof, and the screw member 60 is attached to the member 61. An internal thread for receiving is provided. The first support sleeve 50 is slightly shorter than the second support sleeve 51 so that the locking member 61 can be attached to the inner surface of the second support sleeve 51. Here, the second wedge member 71 is attached to the outer surface of the first support sleeve 50, and in this case, the wedge members 70 and 71 adjust the first support sleeve 50 while being adjusted by the screw member 60. Bend.
[0031]
FIG. 9 shows an embodiment different from the embodiment shown in FIGS. 7 and 8 with respect to the roll bending machine. Here, as the bending machine 100, a hydraulic or pneumatic cylinder or a stepping motor is used. The cylinder or stepping motor rod 101 is attached to the first support sleeve, and the cylinder or stepping motor is attached to the second support sleeve. Therefore, the vertical movement of the rod 101 causes the shaft journal 12 to bend.
[0032]
FIG. 10 shows an embodiment of the present invention in which the bending is performed by two bending means 120 and 130 on two planes orthogonal to each other. The bending means 120, 130 are attached from one end to a substantially L-shaped support beam 110, which is also attached to the frame R of the paper machine. On the other hand, the opposite ends of the bending means 120, 130 are attached to a flange 113 surrounding the second bearing 15. The first bending device 120 moves the shaft journal 12 along the vertical plane Y, and the second bending device 130 moves the shaft journal 12 along the horizontal plane X. With such a structure, the desired curved shape of the roll can be adjusted by the first bending device 120, for example, and the desired angular position of the curved shape of the roll can be adjusted by the second bending device 130. It is.
[0033]
The bending means 120 and 130 shown in FIG. 10 are composed of nut members 123 and 133 provided with an inner screw thread and an outer screw thread fixed to the flange 113 to one end of the nut member. A first pin 121, 131 attached and a second pin fixed to the sledges 124, 134 moving on the beam 110 and provided with an external thread and attached to the opposite end of the nut members 123, 133 Pins 122 and 132. When the nut members 123, 133 are rotated, the shaft journal 12 is thereby rolled Mantle 11 can be bent in the XX plane. With this structure, the roll Mantle Both eleven bend shapes and the angular position of the bend shape are adjustable. The sledge 124 is attached to the horizontal portion of the beam 110 and is movable on the X plane by the support of the wheel 125, but the movement of the beam 110 on the Y plane is fixed. Similarly, the sledge 134 attached to the vertical portion of the beam 110 is movable on the Y plane by the support of the wheel 135, but the movement of the beam 110 on the X plane is fixed. The wheels 125, 135 of the sledges 124, 134 roll on guide rails or equivalents made on the beam 110. Wheel structures 125, 135 are just one example of how sledges 124, 134 can be mounted on beam 110 to allow movement of sledge 124 in direction X and movement of sledge 134 in direction Y. Instead of the nut pin method, here, for example, a hydraulic or pneumatic cylinder or a stepping motor can be used.
[0034]
FIG. 11 shows a variant of the embodiment shown in FIG. 10, in which the bearing and bending of the shaft journal 12 are performed by at least one magnetic bearing. At least one of the bearings 14, 15 is a magnetic bearing 15, thereby bending the roll journal 12 and thereby the roll Mantle 11 can be bent. The magnetic flux of the magnet 250 of the magnetic bearing 15 and the force applied to the shaft journal 120 by the magnet 250 are thereby adjusted, and the shaft journal 12 can be moved eccentrically with respect to the housing. Therefore, the magnetic bearing 15 allows the roll shaft 12 to be bent and thereby the roll Mantle 11 rolls made by bending to desired curved shape in each XY plane and bending to desired posture Mantle It is possible to adjust the angular position of 11 arcs.
[0035]
FIG. 12 shows a second variant of the embodiment shown in FIG. 10 where the bending of the shaft journal 12 and the angular position of the bending are adjusted by a magnet 260. The flange 19a surrounding the second bearing and the base 19b of the flange 19a attached to the frame R of the paper machine are in communication with each other by a magnet 260. The magnet 260 includes a plurality of sector-shaped portions, and the magnetic flux of each sector can be adjusted independently. With such a configuration, the shaft journal 12 can be bent in the XY planes as desired.
[0036]
FIG. 13 shows a third variant of the embodiment shown in FIG. 10, in which the bending of the shaft journal 12 is performed by the nut member 153 and the angular position of the bending is adjusted by the rack gear devices 160, 150. . A flange 113 surrounding the second bearing 15 is attached to the gear device 150 by a nut member 153. The nut member 153 provided with the inner thread is equivalent to the nut members 123 and 133 shown in FIG. 11, and a pin 151 protruding from the bearing flange 113 and provided with the outer thread is provided at one of its ends. A pin 152 protruding from the gear unit 150 and provided with an external thread is attached to the opposite end. Gear device 150 includes a gear 154 mounted on gear device 150 by its shaft 155. The shaft 155 of the gear 154 projects from the gear device 150, the projecting part preferably having a quadrilateral cross section, in which case it can be rotated, for example by means of a lever suitable for the purpose. The rack device 160 includes a rack 161 having a substantially arc shape along which a gear 154 travels. The rack device 160 further includes a guide portion 162 that slides in the guide groove 156 of the gear device 150. The rack device 160 is attached to the beam 140, which is also attached to the frame R of the paper machine. When the nut device 153 is rotated, the distance from the rack 161 to the central axis XX of the shaft journal 12 can be adjusted, thereby bending the shaft journal 12 and thereby rolling Mantle 11 can be bent. On the other hand, by the gear 154 of the gear device 150, the roll Mantle It is possible to adjust the angular position of eleven curved shapes. The gear device 150 can be fixed at a desired angular position on the rack 161 by a screw fixing device 157 for fastening the sledge 150 to the rack 161.
[0037]
FIG. 14 shows an embodiment according to the present invention in which the bending of the shaft journal 12 is performed by a disk member 180 attached to the shaft journal 12. The fixing flange assembly 170 attached to the frame R of the paper machine includes two substantially rectangular vertical walls spaced axially from one another, ie, a front wall 171 and a rear wall 172. The bottom and top edges of the front wall 171 and the rear wall 172 are interconnected by a substantially rectangular and horizontal bottom wall 173 and ceiling wall 174. Similarly, the side edges of the front wall 171 and the rear wall 172 are interconnected by a substantially rectangular vertical first side wall 175 and second side wall 176. These walls 171, 172, 173, 174, 175, 176 define a hollow space 190 inside them, in which a disk 180 attached to the shaft journal 12 rotates with the shaft journal 12. The shaft journal 12 extends through a hole 177 provided in the front wall 171 of the fixing flange assembly 170 and a hole 178 provided in the rear wall 172, and can be rotated by a bearing 15 in the rear wall 172. Is attached. The diameter of the hole provided in the front wall is larger than the outer diameter of the shaft journal 12.
[0038]
Further, in the embodiment shown in FIG. 14, hydraulic loading elements 190, 191 are mounted on both side surfaces 180a, 180b on the outer periphery of the disk 180, thereby bending the disk 180, thereby causing the shaft journal 120 to move. Can be bent. The pistons 190a, 191a of these loading elements 190, 191 move within cylinders 200, 201 made into the front wall 171 and rear wall 172 of the fixing flange assembly 170. Pressurized medium ducts 210 and 211 pass through the bottoms of the cylinders 200 and 201. The pistons 190a and 191a are sealed in the cylinders 200 and 201 by a sealing member known per se, and the members are not shown. In addition, a thin capillary duct (not shown) enters the lubricating pockets 220, 221 of the loading elements 190, 191 through the pistons 190a, 191a. Each loading surface 190a, 180b of the disk 180 is preferably provided with four loading elements 190, 191, ie a total of eight elements. The load elements 190 and 191 are arranged at the intersections of the circumference of a circle drawn at the center of the shaft journal 12 and the X and Y axes.
[0039]
In the embodiment shown in FIG. 14, the shaft journal 12 is bent by a disk 180 attached to the shaft journal 12 and hydraulic loading elements 190, 191 acting on the disk, thereby causing a roll. Mantle 11 is bent. Rolled by 8 loading elements 190, 191 Mantle 11 can be bent to a desired bend shape and a desired angular position.
[0040]
FIG. 15 shows an embodiment different from the embodiments shown in the previous drawings in terms of the bending machine, the bearing structure, and the shaft journal. In this embodiment, the shaft journal 12 has a substantially uniform thickness over its entire length and is not bent. roll Mantle The shaft journal 12 in the first support sleeve 13 mounted on the inner side of the shaft 11 is disposed by a hydrostatic or hydrodynamic slide bearing 70, 71, and by these supports, the roll Mantle 11 rotates relative to the shaft journal 12. The sliding bearings 70 and 71 are arranged in the direction of the roll axis XX at a distance from each other. As supply and return ducts for the hydraulic medium, a duct 72 parallel to the axis XX of the axial journal is made into the axial journal 12 with radial ducts 73, 74 at the position of the sliding bearing. The first bearing 70, which operates only as a sliding bearing, is attached to the shaft journal 12 by an articulated joint, whose central axis YY is rotatable with respect to the radius of the shaft journal 12.
[0041]
In the embodiment shown in FIG. 15, in addition to the characteristics of the sliding bearing, the second bearing 71 is provided with the possibility of moving the bearing in the radial direction of the shaft journal 12. The second bearing 71 is attached to the shaft journal 12 and can move in the radial direction of the shaft journal 12, and at the same time, its central axis YY can rotate with respect to the radius of the shaft journal 12. Two hydraulic supply devices 74a and 74b that can be controlled independently are passed through the second bearing 70. With this structure, the movement of the bearing 71 with respect to the radius of the shaft journal 12 can be controlled. When the bearing 71 is moved relative to the radius of the shaft journal 12, the roll Mantle A bending force applied to 11 is generated.
[0042]
The other embodiment shown in FIG. 3 in which the bending device 30 is arranged between the roll and the nearest fixing element 18 is of course also applicable to the embodiments shown in FIGS.
[0043]
10 to 13 show how the bending is performed on the end 52 of the roll at the second outer fulcrum, but the reverse is also possible. In such a case, the bending machine is arranged at the inner fulcrum and the outer fulcrum is fixed.
[0044]
In the embodiments shown in FIGS. 2 to 5, FIG. 7, FIG. 8, FIG. 10 and FIG. Mantle Eleven bending is performed by forced movement by screws 30, 80, screw nut assemblies 120, 130, 151-153 and wedge 70 or equivalent. The screws 30, 80, the screw nut assemblies 120, 130, 151-153 and the wedge 70 or equivalent constrain the shaft journal 12 from moving to its fulcrum, in which case the roll means vibration Is a so-called fixed support.
[0045]
In the embodiment shown in FIG. 6, FIG. 9, FIG. 11, FIG. 12 and FIG. Mantle The bending is performed hydraulically or pneumatically or by the stepping motors 100, 101, 190, 250, 260. In this case, the roll is so-called free support or articulated support in the sense of vibration. Hydraulic and pneumatic media usually yield to some extent, in which case the support has a slight degree of elasticity.
[0046]
In the embodiment shown in FIG. Mantle 15 music rolls directly Mantle 11 and from the inside of the fulcrum of the shaft journal 12. In that case, the bearings 70 and 71 restrain the roll so as not to move to the first support sleeve 13. Therefore, also in this embodiment, the roll is fixedly supported in the sense of vibration.
[0047]
In the case of strict support, the lowest natural frequency of the roll is at least twice as high as the free support roll. As the natural frequency of the roll increases, a smaller roll diameter can be used, in which case the force transmitted from the bend to the frame of the paper machine is reduced and the manufacturing cost of the roll is reduced.
[0048]
Next, the scope of the claims will be shown, but the contents of the present invention may be modified within the scope of the concept of the present invention described in the claims, and may be different from those described above as examples only. .
[Brief description of the drawings]
FIG. 1 Continuous tubular roll Mantle The roll Mantle It is a general | schematic principle figure formed by applying a torque to the both ends of this.
[Figure 2] Roller bearing Mantle FIG. 2 is a schematic view of an embodiment of a roll according to the present invention attached to the inside of the machine, wherein the bending machine is a screw member.
FIG. 3 is a view showing a modification of the embodiment shown in FIG. 2;
4 is a diagram showing a second modification of the embodiment shown in FIG. 2. FIG.
FIG. 5 is a diagram showing a third modification of the embodiment shown in FIG. 2;
6 is a diagram showing a fourth modification of the embodiment shown in FIG. 2. FIG.
[Figure 7] Roller bearing Mantle FIG. 2 is a schematic view of an embodiment of a roll according to the invention attached to the outside of the roll and the bending machine being a screw member.
8 is a diagram showing a modification of the embodiment shown in FIG.
FIG. 9 is a diagram showing a second modification of the embodiment shown in FIG. 7;
[Fig. 10] Roller bearing Mantle FIG. 2 is a schematic view of an embodiment of a roll according to the invention attached to the outside of the roll, wherein the bending of the roll takes place in two planes.
11 is a diagram showing a modification of the embodiment shown in FIG.
FIG. 12 is a diagram showing a second modification of the embodiment shown in FIG.
FIG. 13 is a diagram showing a third modification of the embodiment shown in FIG. 10;
[Fig. 14] Roller bearing Mantle Fig. 2 is a schematic view of an embodiment of a roll according to the invention, wherein the bending of the roll is carried out by a disc attached to the shaft journal and a hydraulic load element acting on the disc.
[Fig. 15] Sliding bearing roll Mantle FIG. 2 is a schematic view of an embodiment of a roll according to the present invention in which a bending machine based on hydraulic pressure is connected to a sliding bearing.

Claims

In a stretch roll that is bendable for a web-like material having a continuous tubular roll mantle made of a composite with two opposite ends,
Each of the ends is
It has an inner part extending into the end of the roll mantle, and an outer part protruding from the ends of the roll mantle, shaft journal inner parts, which are attached to each end of the roll mantle When,
A connecting member provided on the outer surface of the outer part of the shaft journal;
A first support sleeve that extends into the end of the roll mantle , has an inner surface and an outer surface, and is fixed inside each end of the roll mantle ;
First and second fixing means that are spaced apart from each other in the axial direction of the roll and secured to a frame of a paper machine in which the roll is incorporated;
An inner race and an outer race, spaced apart from each other in the axial direction of the roll, rotatably supporting the roll mantle , the outer race being supported by the first support sleeve, The inner race has a bearing supported by the shaft journal;
An inner surface and an outer surface, surrounding an outer part of the shaft journal and extending in the axial direction of the roll at least between the fixing means, the outer part of the shaft journal being connected to the second support sleeve by the connecting member A second support sleeve abutting against the inner surface of the second support sleeve, wherein the outer surface of the second support sleeve is fixed to the fixing means;
The roll journal is disposed between the second support sleeve and the shaft journal, and the shaft journal is moved relative to the second support sleeve in a direction transverse to the axial direction of the roll, and the roll mantle is moved by the movement. An overhang roll characterized by including a bending machine that bends into a curved shape.

2. The overhang roll according to claim 1, wherein the connecting member of the shaft journal is substantially disposed at the first fixing means, and the shaft journal is substantially at the second fixing means or at the same. An overhang roll characterized by being deflected by a bending machine attached in the vicinity.

3. The overhang roll according to claim 2, wherein the bending machine includes a screw member, the member passes through the second support sleeve and the shaft journal, and the screw member extends in a longitudinal axis direction of the screw member. With respect to the movement to be performed, the second support sleeve is supported by the locking member that is supported on the outer surface of the second support sleeve and is fixed to the screw member, and the second support sleeve is attached to the screw member. An outer thread is provided over substantially the entire part extending therethrough, and a hole for receiving the screw member of the shaft journal is provided with a corresponding inner thread, in which case the torque is generated by the screw member. The shaft journal is bent by the torque, and the roll mantle is also bent by the torque.

3. The overhanging roll according to claim 2, wherein the bending machine includes a screw member, the member includes an external thread, and the screw member is movable in an axial direction of the roll. A locking member attached to the inner surface of the sleeve and provided with a hole, the hole being parallel to the axis of the roll, the locking member comprising an internal thread for receiving the screw member; The end of the member is disposed opposite to the end surface of the first wedge member, and the first wedge member moves along the inner surface of the second support sleeve in a direction parallel to the axis of the roll. The first wedge member is fixed to the inner surface of the second support sleeve to prevent radial movement, and the wedge surface of the first wedge member is attached to the shaft journal. Against the wedge surface of the second wedge member Is lifting, by pressing by the threaded member to the second wedge member of the first wedge member, generates a force that the bent of the shaft journal, further wherein the roll mantle is bent by the force An overhang roll characterized by

3. The overhang roll according to claim 2, wherein the bending machine includes a hydraulic cylinder, a pneumatic cylinder or a stepping motor attached to the second support sleeve, and the cylinder or the rod of the motor is the shaft journal. The overhanging roll, wherein the movement of the rod generates a force for bending the shaft journal, and the roll mantle is further bent by the force.

2. The overhanging roll according to claim 1, wherein the connecting member of the shaft journal is disposed substantially at the position of the second fixing means, and the shaft journal is substantially located at the position of the first fixing means or the position thereof. An overhang roll characterized by being deflected by a bending machine attached in the vicinity.

2. The overhanging roll according to claim 1, wherein the first and second fixing means are attached to a common lower part, and the common lower part is attached to a frame of a paper machine in which the roll is incorporated. An overhang roll characterized by

2. The overhanging roll according to claim 1, wherein an adjustment device is attached to the second fixing means, and the device is a bearing supported on the outer surface of the second support sleeve via an intermediate member. Due to the movement of the adjusting device in the circumferential direction of the roll acting on the member, a corresponding rotational movement is produced in the second support sleeve and from there also in the shaft journal via the bending machine. The overhanging roll is characterized in that the radial direction of the curved arc of the roll mantle is adjusted.

In a stretch roll that is bendable for a web-like material having a continuous tubular roll mantle made of a composite with two opposite ends,
Each of said end portion is attached to the end members have a exterior surface includes a shaft journal you rotate with the roll mantle, said end member is attached to each end of the roll mantle,
Each of the ends further includes
First and second fixing means that are spaced apart from each other in the axial direction of the roll and secured to a frame of a paper machine in which the roll is incorporated;
It has an inner surface and an outer surface, surrounds the shaft journal, extends in the axial direction of the roll from the first fixing means to the outside of the second fixing means, and exceeds the second fixing means The extension includes a first support sleeve forming an outer portion of the first support sleeve; and
An inner race and an outer race, substantially mounted at the position of the fixing means, rotatably supporting the shaft journal, and the outer race is supported by the first support sleeve; A bearing supported by the shaft journal;
An inner surface and an outer surface, surrounding the first support sleeve, and having a thick portion disposed at a position of the first fixing means and directed to the shaft journal, the thick portion being the first thickness portion; The connecting member of the support sleeve is formed, and extends in the axial direction of the roll from the first fixing means to the outside of the second fixing means. The outer surface of the second support sleeve is fixed to the fixing sleeve. A second support sleeve secured to the means and extending beyond the second securing means, forming an outer portion of the second support sleeve;
Is disposed between the second support sleeve and the first support sleeve and moves the first support sleeve relative to the second support sleeve, thereby crossing the axial direction of the roll An overhanging roll comprising: a bending machine configured to move the shaft journal in a direction and bend the roll mantle into a curved shape by the movement.

10. The overhanging roll according to claim 9, wherein a screw member having an outer thread and having a longitudinal axis is attached to an outer portion of the first and second support sleeves, and the screw members are the first and second screw members. Movement of the screw member relative to the first support sleeve in the longitudinal axis direction is attached to the screw member and supported by the inner surface of the first support sleeve. The screw member is connected to a second locking member, and the locking member is attached to the outer surface of the second supporting sleeve, and is mounted on the screw member. A hole having an inner screw thread for receiving the outer screw thread, and a torque for bending the first support sleeve is generated by the screw member, and the shaft journal is bent by the torque. Further the overhang roll roll mantle characterized by being bent.

The overhanging roll according to claim 9, wherein a screw member having an external thread is attached to an outer portion of the second support sleeve, and the member is movable in parallel to the axial direction of the roll. The screw member is attached to a locking member, and the locking member is attached to the inner surface of the second support sleeve, and has an inner thread for receiving the screw member, and the axial direction of the roll. An end portion of the screw member, which is provided with a parallel hole and is directed to the end portion of the roll mantle , is arranged to face the end surface of the first wedge member, and the wedge member is an inner surface of the second support sleeve. along movable in a direction parallel to the axial direction of the roll, the fixed hampered radial movement relative to the second inner surface of the support sleeve, the wedge surfaces of the wedge member, the First support three The first support member is bent by pressing the first wedge member against the second wedge member generated by the screw member, which is supported by the wedge surface of the second wedge member attached to the outer surface of the first wedge member. An overhanging roll characterized in that a torque for bending the shaft journal is generated by the bending, and the roll mantle is further bent by the torque.

10. The overhanging roll according to claim 9, wherein a hydraulic cylinder, a pneumatic cylinder or a stepping motor is attached to an outer portion of the first and second support sleeves, and the cylinder or motor is attached to the second support sleeve. The cylinder or motor has a rod, the rod is attached to the first support sleeve, and the movement of the rod produces a torque that bends the first support sleeve; The shaft journal is further bent by the torque, and the roll mantle is also bent by the torque.

In a stretch roll that is bendable for a web-like material having a continuous tubular roll mantle made of a composite with two opposite ends,
Each of said end portion is attached to the end members have a exterior surface includes a shaft journal you rotate with the roll mantle, said end member is attached to each end of the roll mantle,
Each of the ends further includes
First and second fixing means, which are arranged at intervals in the axial direction of the roll, are fixed to a frame of a paper machine in which the roll is incorporated, and the second fixing means is L-shaped,
An inner race and an outer race ; the shaft journal is rotatably supported; the outer race of the first bearing is supported by the first fixing means ; and the outer race of the second bearing is the first race The inner races of the first and second bearings are supported by the two fixing means, and the first and second bearings supported by the shaft journal;
The roll journal is disposed between the second fixing means and the shaft journal, and the shaft journal is moved relative to the second fixing means in a direction crossing the axial direction of the roll, and the roll mantle is moved by the movement. Including a bending machine that bends into a curved shape,
In a substantially vertical plane, the bending machine includes a first adjusting machine device mounted between a horizontal portion of the L-shaped second fixing means and a flange surrounding the second bearing. Including, in a substantially horizontal plane, a second adjustment machine device mounted between a vertical portion of the L-shaped second securing means and the flange surrounding the second bearing. Overhang roll.

14. The overhang roll according to claim 13, wherein the first and second adjusting machine devices include a first pin attached to the flange and provided with an external thread, and a sledge that moves on the second fixing means. And an opposing second pin provided with an outer thread, the first and second opposing pins being interconnected by a nut member provided with an inner thread, said nut member overhang roll characterized in that the angular position of the song molding shaped tracks molded shape and the roll mantle of the roll mantle is adjusted.

In a stretch roll that is bendable for a web-like material having a continuous tubular roll mantle made of a composite with two opposite ends,
Each of said end portion is attached to the end members have a exterior surface includes a shaft journal you rotate with the roll mantle, said end member is attached to each end of the roll mantle,
Each of the ends further includes
First and second fixing means that are spaced apart from each other in the axial direction of the roll and secured to a frame of a paper machine in which the roll is incorporated;
An inner race and an outer race ; the shaft journal is rotatably supported; the outer race of the first bearing is supported by the first fixing means ; and the outer race of the second bearing is the first race The inner races of the first and second bearings are supported by the two fixing means, and the first and second bearings supported by the shaft journal;
The roll journal is disposed between the second fixing means and the shaft journal, and the shaft journal is moved with respect to the second fixing means in a direction crossing the axial direction of the roll, and the roll mantle is moved by the movement. Including an arcuate bender,
At least the second bearing is a magnetic bearing, overhanging roll, characterized in that the angular position of the song molding shaped tracks molded shape and the roll mantle of the roll mantle by the magnetic bearings are adjusted.

In a stretch roll that is bendable for a web-like material having a continuous tubular roll mantle made of a composite with two opposite ends,
Each of said end portion is attached to the end members have a exterior surface includes a shaft journal you rotate with the roll mantle, said end member is attached to each end of the roll mantle,
Each of the ends further includes
First and second fixing means that are spaced apart from each other in the axial direction of the roll and secured to a frame of a paper machine in which the roll is incorporated;
An inner race and an outer race ; the shaft journal is rotatably supported; the outer race of the first bearing is supported by the first fixing means ; and the outer race of the second bearing is the first race The inner races of the first and second bearings are supported by the two fixing means, and the first and second bearings supported by the shaft journal;
Bending is arranged between the second fixing means and the shaft journal, and the shaft journal is moved in a direction crossing the axial direction of the roll, and the roll mantle is bent into a curved shape by the movement. Including
The second fixing means includes a flange that surrounds the second bearing and a base, and the flange and the base are connected to each other by a magnet, and the curved shape of the roll mantle and the roll mantle are connected by the communication. An overhanging roll characterized in that the angular position of the curved shape of is adjusted.

In a stretch roll that is bendable for a web-like material having a continuous tubular roll mantle made of a composite with two opposite ends,
Each of said end portion is attached to the end members have a exterior surface includes a shaft journal you rotate with the roll mantle, said end member is attached to each end of the roll mantle,
Each of the ends further includes
First and second fixing means that are spaced apart from each other in the axial direction of the roll and secured to a frame of a paper machine in which the roll is incorporated;
An inner race and an outer race ; the shaft journal is rotatably supported; the outer race of the first bearing is supported by the first fixing means ; and the outer race of the second bearing is the first race The inner races of the first and second bearings are supported by the two fixing means, and the first and second bearings supported by the shaft journal;
It is arranged between the second fixing means and the shaft journal, the shaft journal is moved in a direction crossing the axial direction of the roll, and the roll mantle is bent by the movement. And a composition machine that composes
The bending machine includes a first pin, and a gear that moves on the second fixing means is attached to the fixing flange of the second bearing with the first pin provided with an external thread. The device is fitted with opposing second pins provided with external threads, the opposing pins being interconnected by a nut member provided with internal threads, It is movable along the arc-shaped rack of the rack device attached to the second fixing means, and the curved shape of the roll mantle is adjusted by the nut member, and the angular position of the curved shape of the roll mantle Is adjusted by the gear device and the rack device.

In a stretch roll that is bendable for a web-like material having a continuous tubular roll mantle made of a composite with two opposite ends,
Each of said end portion is attached to the end members have a exterior surface includes a shaft journal you rotate with the roll mantle, said end member is attached to each end of the roll mantle,
Each of the ends further includes
A front and rear wall mounted on a paper machine frame incorporated in the roll and having two substantially rectangular vertical walls spaced apart from each other in an axial direction; Interconnected by bottom and ceiling edges of the vertical wall interconnected by bottom and ceiling walls that are rectangular horizontal walls, and by first and second sidewalls that are substantially rectangular vertical walls. Side walls of the front wall and the rear wall, and the front wall, the rear wall, the bottom wall, the ceiling wall, the first side wall, and the second side wall define a hollow space, and the shaft in the space The disk attached to the journal rotates with the shaft journal, and the shaft journal extends through a hole provided in the front wall of the fixing flange structure and a hole provided in the rear wall, and is rotated by a bearing on the rear wall. Fixing shaft that is pivotally attached And a Nji structure,
The fixing flange structure further includes a load element acting on both sides of the disk, and the disk is bent by the load element, thereby bending the shaft journal, thereby further bending the roll mantle to be bent. An overhanging roll characterized in that an angular position of an arc of the roll mantle is adjusted.

In a stretch roll that is bendable for a web-like material having a continuous tubular roll mantle made of a composite with two opposite ends,
Each of the ends is
It has an inner part extending into the end of the roll mantle, and an outer part protruding from the ends of the roll mantle, shaft journal inner parts, which are attached to each end of the roll mantle When,
First and second fixing means that are spaced apart from each other in the axial direction of the roll, are fixed to a frame of a paper machine in which the roll is incorporated, and support outer parts of the shaft journal;
A support sleeve having an inner surface and an outer surface, attached to each end of the roll mantle ;
A central shaft, disposed between the inner part of the shaft journal and the support sleeve, supporting the shaft journal on the support sleeve, and pivotally supporting the roll mantle on the shaft journal ; Forming a bending machine, bending the roll mantle by the bending machine into a curved shape, acting on a support sleeve supported by the shaft journal, and the central axis with respect to the radial direction of the shaft journal An overhanging roll comprising a hydrostatic or hydrodynamic slide bearing attached to the shaft journal so as to be rotatable.

20. The overhang roll of claim 19, wherein a hydraulic medium is supplied to one of the hydraulic sliding bearings by two independently controllable feeding devices, one of the hydraulic sliding bearings being overhang moved to radius direction of the roll, the central axis of said sliding bearing, wherein forming a radius direction and angle of the roll, characterized in that that said roll mantle of the formation is bent roll.

21. The overhanging roll according to claim 20, wherein the second fixing means includes an adjusting device, and the device acts on a bearing member supported via an intermediate member with respect to an outer surface of the shaft journal. An overhanging roll characterized in that the rotational movement in the circumferential direction of the roll causes a corresponding rotational movement in the shaft journal, and the radial direction of the curved arc of the roll mantle is adjusted.